Mushroom-bullet.



T. 0. JOHNSON.

MUSHROOM BULLET.

APPLICATION FILED SEPT. 15, 1913.

1,077,608, Patented Nov. 4, 1913.

CoLUMBI A PLANOGRAPH c0., WASHINGTON, D c.

'2 ITED STATES PATENT FFEQ.

THOMAS C. JOHNSON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR T0 WINCHESTER REPEATING ARMS 00., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

MUSHRO OM-BULLET.

Application filed. September 15, 1913.

T 0 all whom it may concern:

Be it known that I, THOMAS C. JoHNsoN, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Mushroom- Bullets; and I do hereby declare the fol lowing, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in

Figure 1, a view in side elevation of a bullet constructed in accordance with my invention, a portion of the jacket-tip being broken away to expose a portion of the core which is shown in section. Fig. 2, a view in side elevation of the tip. Fig. 3, a modified form which my invention may assume.

My invention relates to an improvement in that class of mushroom bullets having a relatively hard two -part sheet-metal jacket swaged upon a soft-metal core, the adjacent members of the jacket being over lapped to form a close circumferential joint, the object of my invention being to produce a superior bullet of the character described.

With these ends in view my invention con sists in a mushroom bullet having certain details of construct-ion as will be hereinafter described and pointed out in the claim.

In carrying out my invention as shown in Figs. 1 and 2, the relatively hard sheet-metal body, 2, and the tip, 8, of the jacket are formed independently of each other and swaged in dies upon a soft-metal core, 4. The open inner edge of the tip, 2, is slightly set over the edge of the jacket so that when they are swaged in the dies the edge of the jacket is slightly set inward, as at 5, for the reception of the edge of the tip. The close, circumferential joint, 6, thus formed lies in a plane at right angle to the longitudinal axis of the bullet and does not interrupt the contour thereof.

For the retention of the tip, 2, upon the Specification of Letters Patent.

Patented Nov. 4, 1913.

Serial No. 789,888.

pointed end of the soft-metal core, 4, I form in it a plurality of anchoring indentations, 7, located forward of the joint, 6, and produced by setting portions of the tip inward into the core, either without actually piercing the metal of the jacket-tip 3 or without forming sufficient fissures or openings therein to permit the metal of the core to exude through them, so that in the finished bullet each indentation is represented by a slight depression in the exterior contour of the tip.

In Figs. 1 and 2, the anchoring indenta tions, 7, are tongue-like in form, their outer ends being set inward more than their inner ends.

In the modified construction shown by Fig. 3, the anchoring-indentations, 8, are tri angular in form with their bases arranged forward and struck in deeper than their points which are arranged inward, the indentations being located forward of the joint 6. In this case also the metal of the jackettip is either not broken or not cut sufficiently to permit the soft metal of the core to exude into the external depressions formed by the production of the anchoring indentations.

I claim:

As a new article of manufacture, a mushroom bullet comprising a soft-metal core having a sheet-metal jacket-body and a sheet-metal jacket-tip swaged thereupon, the inner edge of the tip being set over the edge of the jacket to form a close, circumferential joint and the tip being formed forward of the said joint with a plurality of retaining anchors produced by setting portions of the metal of the tip into the core, leaving shallow indentations upon the surface of the tip.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

THOMAS C. JOHNSON.

WVitnesses FRANK A. PAUL, HARRY L. CnooKET'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

